What does Glennis mean?
Glennis /glen-nis/ [2 sylls.] as a name for girls. Glennis' name origin is Welsh, and Glennis means "pure, holy". Glennis is a variant form, with the suffix -is, of Glenys (Welsh): from glān. Glennis is also a variation of Glynis (Welsh).
How popular is Glennis?
Glennis is a somewhat popular first name for females (#2516 out of 4276, Top 59%) but a rare surname for all people. (2000 U.S. Census)
Below is a graphed comparison of the popularity of Glennis and related names. The only prominent related form of Glennis (not ranked) is Glynis. Variants like Glenis are seldom used. This girl name was at the height of its popularity during 1960-1969 (usage of 0.016%) and has become less popular since. (Top 1000 Birth Names Records, 2014)
A recommended similar baby name is Glennie. Like Glennis, this name is not commonly used.